You have a computer with integrated/on board graphics, which is usually not supported in Telltale's games (or the games of most other manufacturers). Gamers usually have an ATI or Nvidia graphics card in their PCs. There were a lot of reports from community members over the years that sometimes it works out with some of the games, but this could never be guaranteed.

I'm not a computer expert (that would be DjNDB), I'm not even sure mainboards with on board graphics can always be retrofitted with a proper graphics card. Any chance you can play this on a different computer? :(

@Clord said: Actually, the problem is that he does not have one it seems.

It's quite possible it's because his display drivers aren't updated. I did a bit of research, and it appears his computer is a A665-S5170. If that's the case, the latest graphics driver can be found here: http://support.toshiba.com/support/modelHome?freeText=2858760'Backup your computer to be on the safe side, then try installing that. If it doesn't fix your problem, then you're out of luck sorry.